Missouri's rocks
can be some pretty tough customers and nowhere is this more apparent than
at one of the numerous shut-ins that dot the Ozarks.

Nine miles southeast
of Eminence on Highway NN is one of the finest examples of this geology
in the state, Rocky Falls Shut-in.

A shut-in is formed
when a stream encounters tough igneous rock. While water can easily wear
down limestone or other sedimentary rocks, it meets its match in the highly
resistant brown, pink and purple porphyry that are remnants of ancient
volcanic activity. The result is a dramatic and musical water show, which
in this case is as much a waterfall as a shut-in.

Rocky Creek cascades
40 feet down the rock, finally finding freedom in a wide pool of cold,
clear water that is an excellent if little-known swimming hole. The site
is on National Forest Service land and a picnic area and primitive toilet
are located nearby.

Rocky Falls Shut-in
is just one of many sites to see in Shannon County. At the county seat,
Eminence, a sign welcomes visitors to spend a "Day or a lifetime in Shannon
County." With trail rides, the Current and Jacks Fork National Scenic
Riverways, Alley Spring Grist Mill, caves, world-class springs and countless
geologic wonders, it might just take a lifetime to see it all.